value unc_up unc_lo author ref method 0.194 0.3130 0.3130 Masiero 2012ApJ...759L...8M NEATM 0.264 0.0499 0.0499 Masiero 2011ApJ...741...68M NEATM 0.270 0.0600 0.0600 Masiero 2014ApJ...791..121M NEATM